Carrier Editor Is not working on my iPhone 5?

As some of you all would have known, there's something known as Carrier Editor, a Mac or PC application which helps you to change your Carrier Logo without a jailbreak. It does not work for me on my iPhone 5, 6.1.4 and I'm not sure why. After uploading the logos into my phone, there's no change on my device.

After iOS 6.1.2 Apple patched this. It will not work anymore.

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